Uwe Brauer writes: > In the attached file Maybe I missed it, but I don't think your report included an attachment? I went with the two example files you showed in the previous discussion; cf. my own attachments. > I do: > > M-: (setq org-adapt-indentation 'headline-data) > C-x h > M-: (indent-for-tab-command) > > Result > > the :PROPERTIES: drawer is not indented. > > Emacs : GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.14.6, Xaw3d scroll bars) > of 2021-07-31 > Package: Org mode version 9.5 (release_9.5-145-gd18beb @ /home/oub/emacs/site-lisp/packages/org/) I can reproduce with the latest commit on 'main' (e2fa3c4c4); AFAICT the release that is included in the emacs-28 branch (52e6f1) works correctly, which is why I did not see the problem. I tried to bisect; fc80d052d fails to compile so it's hard to be sure, but I think it might be when things started to go awry. I can't reproduce the bug with the parent commit (6933c1ad7), but I can with the next one (bc52c4d9a). fc80d052d was a rather chunky commit so I did not dig into the patch; Ihor, does it make sense to you that it might have introduced unfortunate side-effects wrt :PROPERTIES: indentation?